Stock Ownership/OKLO

OKLO INC (OKLO): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in OKLO · Utilities. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
19
13F filers
Aggregate Value
$120.3M
Across holders
Last Price
$39.69
2026-08-24
Sector
Utilities
GICS
Quarterly fund activity15 increased4 reduced3 exited
Full exits: Woodline Partners LP, TUDOR INVESTMENT CORP ET AL, Parallax Volatility Advisers, L.P.
Institutional Holders of OKLO
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19 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund1.07M$55.8M46.4%0.0%Added—Q2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund279K$14.6M12.1%0.0%Added+$11.6MQ2 2026
Rockefeller Capital Management L.P.
CIK 0001739439
Hedge Fund253K$13.2M11.0%0.0%Added$-24.5MQ2 2026
PineBridge Investments, L.P.
CIK 0001531721
Hedge Fund52K$5.8M4.8%0.0%Added—Q3 2025
BALYASNY ASSET MANAGEMENT LLC
CIK 0001218710
Hedge Fund85K$4.4M3.7%0.0%Added+$2.7MQ2 2026
Brevan Howard Capital Management LP
CIK 0001512857
Hedge Fund82K$4.3M3.5%0.0%Added+$3.8MQ2 2026
Squarepoint Ops LLC
CIK 0001642575
Hedge Fund74K$3.9M3.2%0.0%Added+$2.4MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund73K$3.8M3.2%0.0%Reduced+$2.1MQ2 2026
Holocene Advisors, LP
CIK 0001700574
Hedge Fund67K$3.5M2.9%0.0%Added+$1.1MQ2 2026
Bridgewater Associates, LP
CIK 0001350694
Hedge Fund56K$2.9M2.4%0.0%Added+$65KQ2 2026
MARSHALL WACE, LLPAdded
Hedge Fund
$55.8M· 46.4% of total· 0.0% port· 1.07M sh· — QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$14.6M· 12.1% of total· 0.0% port· 279K sh· +$11.6M QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$13.2M· 11.0% of total· 0.0% port· 253K sh· $-24.5M QoQ· Q2 2026
PineBridge Investments, L.P.Added
Hedge Fund
$5.8M· 4.8% of total· 0.0% port· 52K sh· — QoQ· Q3 2025
BALYASNY ASSET MANAGEMENT LLCAdded
Hedge Fund
$4.4M· 3.7% of total· 0.0% port· 85K sh· +$2.7M QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$4.3M· 3.5% of total· 0.0% port· 82K sh· +$3.8M QoQ· Q2 2026
Squarepoint Ops LLCAdded
Hedge Fund
$3.9M· 3.2% of total· 0.0% port· 74K sh· +$2.4M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPReduced
Hedge Fund
$3.8M· 3.2% of total· 0.0% port· 73K sh· +$2.1M QoQ· Q2 2026
Holocene Advisors, LPAdded
Hedge Fund
$3.5M· 2.9% of total· 0.0% port· 67K sh· +$1.1M QoQ· Q2 2026
Bridgewater Associates, LPAdded
Hedge Fund
$2.9M· 2.4% of total· 0.0% port· 56K sh· +$65K QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$1.7M· 1.4% of total· 0.0% port· 32K sh· +$1.6M QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$1.5M· 1.2% of total· 0.0% port· 28K sh· $-69.5M QoQ· Q2 2026
Schonfeld Strategic Advisors LLCAdded
Hedge Fund
$1.3M· 1.1% of total· 0.0% port· 26K sh· — QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$1.2M· 1.0% of total· 0.0% port· 23K sh· +$1.0M QoQ· Q2 2026
Hudson Bay Capital Management LPAdded
Hedge Fund
$1.0M· 0.9% of total· 0.0% port· 20K sh· — QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$685K· 0.6% of total· 0.0% port· 13K sh· — QoQ· Q2 2026
CAPSTONE INVESTMENT ADVISORS, LLCAdded
Hedge Fund
$489K· 0.4% of total· 0.0% port· 9K sh· +$65K QoQ· Q2 2026
Walleye Capital LLCReduced
Hedge Fund
$186K· 0.2% of total· 0.0% port· 4K sh· $-2.0M QoQ· Q2 2026
Fulcrum Asset Management LLPAdded
Hedge Fund
$51K· 0.0% of total· 0.0% port· 972 sh· — QoQ· Q2 2026
1–10 of 19
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